Hi, On Wed, Oct 28, 2009 at 5:22 PM, MEM <tal...@gmail.com> wrote:
> I've been told that stack is the way to go, so I'm trying to understand > the > following code: > http://pastebin.com/m5616c88f > I've commented every line so that any of you could see if I'm interpreting > something wrong: > > > I have two questions about this code, that hopefully someone on the list > could explain: > > 1) > Why do we need to remove the last array item? (on line 32): > array_pop($urlStack); > On line 20, $url creates an URL path that includes the $cat path. Once you've completed iteration on all children of $cat, the url path should no longer include $cat path, thus it is removed from $urlStack. > > 2) > Why we print the closed tag of the li element, after the recursive call? > (on > line 29) > echo "</li>\n"; > Line 29 is closing the li element that was opened on line 23 for $cat. > > > Thanks a lot in advance, > Márcio > -Lex
